A method and apparatus is provided for setting time positions of measurement gates on a signal under test. In one embodiment, complex weightings for matching a polarization of an incident signal on a data channel are determined, and the complex weightings are applied to a tracking channel such that an antenna system polarization is matched to the polarization of the incident signal. The footprint database comprises a plurality of system lists. Still further, the wireless proximity framework allows for services and applications to be delivered in a customized manner to each mobile computing device. Furthermore, microlens row groups, which are configured from three microlens rows, are arranged with offset in the direction perpendicular to the direction of scanning in increments of a minute amount of shifting F.